using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Tango.PPC.Common.Modules
{
    /// <summary>
    /// Represents a PPC <see cref="IPPCModule"/> modules loading engine.
    /// </summary>
    public interface IPPCModuleLoader
    {
        /// <summary>
        /// Occurs when the user has logged in and user modules are loaded.
        /// </summary>
        event EventHandler ModulesLoaded;

        /// <summary>
        /// Gets all loaded modules.
        /// </summary>
        ObservableCollection<IPPCModule> AllModules { get; }

        /// <summary>
        /// Gets all the user permitted modules.
        /// </summary>
        ObservableCollection<IPPCModule> UserModules { get; }

        /// <summary>
        /// Gets the PPC module of type T if loaded.
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <returns></returns>
        T GetPPCModule<T>() where T : IPPCModule;

        /// <summary>
        /// Loads all available PPC modules.
        /// </summary>
        void LoadModules();
    }
}